On Fri, Jul 31, 2020 at 8:51 PM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote: > > On 7/31/20 8:25 PM, Dan Williams wrote: > > Disable parsing of the HMAT for debug, to workaround broken platform > > instances, or cases where it is otherwise not wanted. > > > > --- > > arch/x86/mm/numa.c | 2 ++ > > drivers/acpi/numa/hmat.c | 8 +++++++- > > include/acpi/acpi_numa.h | 8 ++++++++ > > 3 files changed, 17 insertions(+), 1 deletion(-) > > > > diff --git a/arch/x86/mm/numa.c b/arch/x86/mm/numa.c > > index 87c52822cc44..f3805bbaa784 100644 > > --- a/arch/x86/mm/numa.c > > +++ b/arch/x86/mm/numa.c > > @@ -41,6 +41,8 @@ static __init int numa_setup(char *opt) > > return numa_emu_cmdline(opt + 5); > > if (!strncmp(opt, "noacpi", 6)) > > disable_srat(); > > + if (!strncmp(opt, "nohmat", 6)) > > + disable_hmat(); > > Hopefully that will be documented in > Documentation/x86/x86_64/boot-options.rst. Sorry, yes, you gave that feedback before. I can do a quick respin with this and the kbuild-robot compile fixups.